Definition of a Timber Rotation Period

A timber rotation period is simply the time between the establishment of a stand of trees and when that same stand is ready for a final cut. This period of years, often called the optimum rotation period, is especially important when foresters try to determine the most advantageous harvest condition in an even-aged stand of trees. When a stand is either economically mature or reaching beyond natural maturity, the rotation period has been reached and a final harvest can be planned. In any given condition, there is a best size and age to which timber should be allowed to grow. These sizes and ages can be very different depending on the desired harvest scheme used and the final timber product to be produced. What is important to know is that a premature cutting ​should  be avoided before trees reach their optimum value or, on the other hand, that trees in a stand do not grow beyond their optimum size and continued vigor. Over mature stands can result in defective tree deterioration, timber handling, and milling problems. There is also a time in maturing stands when a decreasing growth rate (of return) hurts the owners investment return. An optimum timber rotation is often based on and determined by precisely calculated criteria using the latest developments in forest statistics and the proper equipment. These criteria include measuring a stands mean diameter and height (stand size), determining the stand age in years, coring and measuring tree rings to determine the climax of mean annual increment and monitoring all these data for the onset of negative physical deterioration or when growth rates drop.

Essay on Personal Statement - 1405 Words

My decision to pursue a PhD is derived from my passion for science and engineering paired with my abilities in the field of machine learning and applied statistics. I consider myself fortunate to be part of the Department of Computer Science, University of Florida for my master studies. More importantly, I am glad to have two excellent professors in this field as advisors, Dr. Pader and Dr. Jilson, who are guiding me throughout my graduate studies. They assisted me to decide and pursue the courses and topics that interested me. During my first semester, I took the course Mathematical methods for Intelligent Systems that gave me a strong base for applied mathematics in the field of intelligent systems. Similarly, the research course†¦show more content†¦Wilson in which I analyzed machine-learning techniques that could be used in a realm-based Question Answering system. My master’s thesis is an extension to this study, for which, I am working with â€Å"Morpheus† team at Database Research Center in our department. Our team is building a question answering system that uses deep web sources by exploiting information from Wikipedia and WordNet along with sample query answering strategies provided by users. The motivation behind this research work is as follows. If we search for an answer to a question in a typical search engines such as Google, Bing, or Yahoo, it usually gives us relevant pages based on the key words in the query. We may need to follow several links or pages to reach a document providing a relevant answer. If we can store such search pathways to an answer for a given user query and reuse it for future searches it may speed up this process. Our question answering system motivated by reuse of prior web search pathways to yield an answer a user query. We represent queries and search pathways in a semi-structured format that contains query terms and referenced classes within a realm based ontology. First part of my research is to build a system that can automatically tag the terms in a user query to relevant classes from a domain-based ontology. The other part is to rank the prior searches (contains user queries, assigned classes, and search pathways) stored in the database based on theShow MoreRelatedPersonal Statement On Pers onal Responsibility850 Words   |  4 PagesPersonal responsibility is holding you accountable for all your actions and decisions. Being personally responsible means you take ownership of what you do in and with your life. This means from the time you wake up until you go to bed at night, your life is your responsibility and yours alone. Your values, morals, and beliefs are all contributing factors in how you view being personally responsible. 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Efficiency in Manufacturing Process free essay sample

An analysis of efficient manufacturing process in the automotive industry. This paper examines process standardization in manufacturing within the automotive industry. Problems such as delegation of responsibility, task management, and process management, as well as issues of resolution, are outlined. General Motors, Toyota, Rayloc, Continental Teves, and Tower Automotive are included in the discussion. Process standardization in automotive industry began at the advent of the century when Henry Ford introduced assembly line mass production. At the time introduction of assembly line production was considered revolutionary. But today when automotive companies build upon this foundation they are facing more complex organizational problems. Capability to resolve problems has become imperative for organizational efficiency. Tower Automotives problem is one of organizational process and procedures. Problems of this nature arise when sections of the assembly line is disrupted. Problems could range from managerial, where delegation responsibilities are not communicated in clear and coordinated terms; tasks where the task completion time and assignment has not been cleared or it could be in terms of production line where process management is not effective. We will write a custom essay sample on Efficiency in Manufacturing Process or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page To demonstrate, the researcher takes the example of General Motors work process. According to author Michael Maccoby [1997] understanding of Americas automobile corporations, work process require empowerment from the management side and commitment from the workers. It requires standardization. GM before the application of lean manufacturing, faced problems of narrow, standardized, monotonous task, repetition and downtime. Workers at the factory were discontent at the kind of work they do, supervisors expressed disappointment at workers performance and the management was dismayed at the result of production. When the company followed the lead of Toyota Motors lean manufacturing process, it created a team spirit.